With the rapid development of China's bearing industry,the variety of bearing is from few to many,the product quality and technical level are from low to high,and the industry scale is from small to large.A**production system with basically complete product categories and reasonable production layout has been formed.

　　After analyzing the data of the past five years,it is found that the sales revenue of China's bearing manufacturing industry also increased year by year from 2009 to 2013.In 2013,sales revenue reached 249.012 billion yuan,up 11.80%year on year.

　　At present,China's bearing industry is mainly faced with three prominent problems:low industrial production concentration,low R&D and innovation capacity,and low manufacturing technology level.

　　1、The industrial production concentration is low.Of the world's bearing sales of about US$30 billion,the world's eight largest multinational companies account for 75%to 80%.Germany's two largest companies account for 90%of the total,Japan's five companies account for 90%of the total,and the United States'one company accounts for 56%of the total.However,the sales volume of 10***large bearing enterprises in China,such as tile shaft,accounts for only 24.7%of the whole industry,and the production concentration of the top 30 enterprises is only 37.4%.

　　2、Low R&D and innovation capacity.The basic theoretical research of the whole industry is weak,the participation in the formulation of international standards is weak,and there is less original technology and less***products.

　　At present,our design and manufacturing technology is basically imitation,and our product development capacity is low,which is reflected in that although the matching rate of domestic main engines reaches 80%,the matching and maintenance bearings of important main engines such as high-speed railway passenger cars,medium****cars,computers,air conditioners,and high-level rolling mills are basically imported.

　　3、The level of manufacturing technology is low.The manufacturing process and process equipment technology of China's bearing industry is developing slowly,the NC rate of turning is low,and the level of grinding automation is low.There are only more than 200 automatic production lines in the country.Advanced heat treatment processes and equipment that are critical to bearing life and reliability,such as controlled atmosphere protection heating,double refining,bainite quenching,have low coverage,and many technical problems have not been solved.The research and development of new steel grades of bearing steel,the improvement of steel quality,and the research and development of lubrication,cooling,cleaning and abrasive tools and other related technologies can not meet the requirements of improving the level and quality of bearing products.As a result,the process capability index is low,the consistency is poor,the product processing dimension dispersion is large,and the internal quality of the product is unstable,which affects the accuracy,performance,life and reliability of the bearing.

　　Under the guidance of the 12th Five-Year Plan,China's high-end bearing industry has formulated an industrial development plan.The policy of promoting the development of domestic mold industry by means of projects and exports has been formulated.Driven by the development of rail transit,medical equipment,new energy,aerospace,automobile lightweight,rail transit and other fields,the level of China's bearing industry has been significantly improved.The bearing industry has made steady progress in the traditional market while actively exploring emerging markets,and even the marginal markets that have been neglected in the past have been developed.These factors have made remarkable achievements in the development of the mold market.

　　According to the current domestic situation,there must be many difficulties in developing high-end bearings.Only by constantly overcoming the existing difficulties can the high-end bearing industry achieve a huge leap.The domestic high-end bearing industry is shouldering the important mission and challenge of the localization of China's high-end equipment,and considering the R&D,casting and innovation capabilities of Shayan Technology**,we believe that in the future,it will be able to support the important task of the localization of China's major equipment.